Signal-lantern.



J. 0. GARGAN. SIGNAL LANTERN. APPLICATION mco 056.28. 1916.

m K m m H m 8 u V7 MN MW n m 2% West New York, in the county ings, may be made j such as spun sheet metal, according to any parts 'of' the lantern securely certain sections broken away in 0rd means for locking UNITED STATES PATENT OFFlCE.

JOHN O. GARGAN, OF WEST NEW YORK, NEW JERSEY, ASSIGNOR T0 WESTERN ELECTRIC COMPANY, INCORPORATED, OF NEW YORK, N.

Y., A. CORPORATION OF NEW YORK.

SIGNAL-LANTERN.

Specification of Letters Patent Patented Jan. 21, 1919.

Application filed December 28, 1916. Serial No. 139,337.

To all whom it may concern Be it known that'I, JOHN O. GARGAN, a citizen 'of the United States, residing at of Hudson and State of New Jersey, have invented certain new and useful Improvements in Sigmil-Lanterns, of which the following is a full, clear, concise, and exact description.

- This invention relates to signal lanterns, the general object being to provide a new and improved lantern particularly adapted for police signaling purposes in large cities.

One feature of the invention is in a new and improved means for adj ustably supporting an incandescent lamp within the lantern, which facilitates locating the source of light at the focal center of the lamp.

Another feature of the invention is in a new and improved means for locking two together.

The invention is described more in detail in connection with the drawings, in-' which Figure 1 is a top view of the lantern with er to show the light-adjusting device and, the the globe member to the hood; Fig.2 is a front view of the lantern with parts broken away to show the position of the incandescent lamp and the manner in which the adjusting device is operated;

details of the adjusting and locking device.

The lantern hood 1, as shown in the ,drawof any suitable material,

suitabledesign which provides good protection. against the weather. To the top of the hood a. nipple 2 is fastened which provides a means. for suspending the lantern from a pipe containing wires leading to the meandescent lamp socket. The globe member -formin the lower part of the lantern comprises file transparent member or shield 3, hich may be made of glass in one piece, or of four spheroidal lenses held together and protected by the frame-work of the globe member. In the embodiment of the present invention this frame-work comprises four members 1, 5, 6 and 7 cut from sheet metal of the shape shown, and placed with their concave edges against the transparentmember 3 and -globe member is now member 3 from the ports the transparent fastened to members bottom, and is securely l, 5,6 and 7.

Below cylinder 10 and hinged.

thereto is another cylinder 11 carrying a lens 12, which permits the projection of light in a downward direction. The cylinder 11 is provided with a hinged latch 13 which when released permits it and lens 12 to swing back. allowing easy access to the incandescent lamp within the globe member. The members it, 5, 6 and 7 are firmly held together at their tops by a flange 11 in which there are notches into which the ends of said members project, as shown in Figs. 1 and 2. When the globe member is brought up under the hood, the metal lugs 15, 16, 17 and 18, which are riveted to the under side of the hood and spaced 90 apart, respec- 'tively, enter notches 19, 20, 21 and 22 in the edge of the flange 11. The diameter of the hood at the point just above the lugs is such that the flange 1-l will snugly fit therein. The locked to the hood by giving it a turn in a counter-clockwise direction until a stop 23 formed in the edge of flange 1% comes in contact with the lug 16; At about the same time. a spring lockin device 24, which is riveted to the under sic e of the flange 14: at the point 25, and has been bent backward by engagement with the lug 18, snaps in behind said lug. The globe member is thus securely supported on the lugs 15, 16, 17 and 18, and is prevented from turnin either in a clockwise clockwise direction respectively,

or counterby the engagement of spring 24; behind lug 18, and

by the engagement of stop 23 with lug 16. To remove the globe member, the sprin 24 is pulled downward, thus releasing it rom engagementwith lug 18, and the whole member turned in a clockwise direction until at stop 26 formed engages the lug 16. The notches 19, 20, 21 and 22 are then, respectively, directly above the lugs 15, 16, 17 and 18, and by a slight downward movement, the globe'member may be disengaged from the hood. is desirable that the lugs 15, 16, 17 and 18 and the notches 19, 20, 21 and 22 be spaced closely to 90 from one another in order that any lug may coiiperate with any notch.

Within the hood there are two parallel metal bars 27 and 28 which are riveted thereto. Engaging these bars at their cenin the edge of flange 14 Of course, it

ter is a vertically adjustable U-shaped mem-. 1 0

ber 29. Each leg of member 29 has a l-on-,

gitudinal slot 30. These slots engage the bolts 31 and 32 held, respectively, in the bars 27 and 28. The member 29 is therefore vertically adjustable with respect to the bars '27 and 28 and maybe securely held in any desired position bymeans ofvthe bolts 31 and 32. Any tendency of the member 29 to rotate around the bolts as an axis, is premember 29 by means of nipple 36-, and may have inserted therein an incandescent lamp 37 of any desired size and shape. In adjusting the lamp to the proper position, the

bolts 31 and 32 are loosened, allowing the member '29 to be held only'by the friction between it and the bars 27 and 28. Access to the interior of the lantern is had through the bottom by unfastening the latch 13 and allowing the cylinder 11 and lens 12 to swing back on its hinge (not shown). The lamp can then be. easily adjusted so that the center of its filament is exactly at the focal center of the lantern. The globe member may then be temporarily removed and the bolts 31 and 32'tightened.

Vhat is claimed is: 1. A signaling lantern comprising a globe member, a hood member, a source of light within said hood and globe members, means for supporting said source of light from said hood member, and means for attaching said globe member to said hood member comprising a circumferentially notched fiange forming part of said globe member,

menses lugs uponthe inside of said hood member I adapted to register with the notches in said flange and to engagesaid flange whenthe latter is rotated, and a locking-springicarried by said'fiangeiand-ziadapted to; engage one of'said lugs. 1 ;i

2. In a signaling lantern, the combination of a globe member, a hood member, means for attaching said globe member to said hood member, a source'of light, and means for supporting-said source of light from said hood membercomprising two bars eX- tending in spacedrelation across the hood, a pair of transverse shoulderson oneside of each bar, a U-shaped member having a leg fitting between the shoulders of each bar and slidably adjustable across said bar. and means for holding said legs in adjusted positions on'the bars.

3. In a signaling lantern, the combination of a globemember, a hood member, means for attaching said globe member to saidhood member, a source of light, and means for supporting said source of light from said hood member, comprising two spaced bars, each having oifset portions therein and, extending transversely of and fastened to said hood member, a movable member on which the source of light is mounted, said member fitting against the offset portions of said bars and slidably adjustable across said bars and means for holding said member in any one of a plurality of adjusted positions.

In witness whereof, I hereunto subscribe my name this 27th day of December. A. D.

J OH1\ O. GARGAN. 

